diff --git a/matlab/src/classes/@MatMust/MatMust.m b/matlab/src/classes/@MatMust/MatMust.m
index 873f0e391557e8546c8a959460258c6c310e66d2..b5b7f308c21c63d6f962b5e2e10298b1cab3a4bd 100644
--- a/matlab/src/classes/@MatMust/MatMust.m
+++ b/matlab/src/classes/@MatMust/MatMust.m
@@ -137,7 +137,8 @@ classdef MatMust < handle
             %   calibrated data
             % You can add aggration funcition
             % aggregation = [days | hours | minutes ]
-            % aggregation = [ FIRST | LAST | MAX | MIN | AVERAGE]
+            % aggregationFunction = [ FIRST | LAST | MAX | MIN | AVERAGE]
+            % aggregationValue = <numeric> (es. 10)
           
             % intialize data output
             data = [];
diff --git a/matlab/test/classes/@MatMust/MatMust.m b/matlab/test/classes/@MatMust/MatMust.m
index 873f0e391557e8546c8a959460258c6c310e66d2..b5b7f308c21c63d6f962b5e2e10298b1cab3a4bd 100644
--- a/matlab/test/classes/@MatMust/MatMust.m
+++ b/matlab/test/classes/@MatMust/MatMust.m
@@ -137,7 +137,8 @@ classdef MatMust < handle
             %   calibrated data
             % You can add aggration funcition
             % aggregation = [days | hours | minutes ]
-            % aggregation = [ FIRST | LAST | MAX | MIN | AVERAGE]
+            % aggregationFunction = [ FIRST | LAST | MAX | MIN | AVERAGE]
+            % aggregationValue = <numeric> (es. 10)
           
             % intialize data output
             data = [];